*{
    padding: 0;
    margin: 0;
}
.subject{
    width: 100%;
    background-color: cornflowerblue;
}
.menu{
    width: 100%;
    height:50px;
    background-color: #3d444c;
}
.menu ul li{
    line-height:50px;
    display: inline-block; 
    text-align: center;
    width: 32%;
    font-size: 18px;
    color: white;

}
.menu ul li:hover{
    background-color: tan;
}
.login{
    width: 100%;
    height: 100px;
    background-color: tomato;
}
.input1{
    display:block;
    width:100%;
    height:50px;
    border-top: none;
    border-left: none;
    border-right:none;
    font-size:20px;
}
.input2{
    display:block;
    width:100%;
    height:50px;
    border-top: none;
    border-left: none;
    border-right:none;
    font-size:20px;
}
.login1{
    width:95%;
    height: 50px;
    background-color: #18a580;
    margin: 0 auto;
}
.text1{
    color:white;
    font-size:22px;
    cursor: pointer;
    text-align: center;
    line-height: 50px;
}
.blank{
    width: 100%;
    height: 50px;
}
.forget{
    width: 100%;
    height: 50px;
}
.text2{
    width :65px;
    height: 30px;
    background-color:white;
    color: seagreen;
    position: relative;
    left: 75%;
    top:15px;
    cursor: pointer;
}
.blank2{
    width: 100%;
    height: 168px;
}
.icon{
    width: 68%;
    height: 50px;
    margin: 0 auto;
}
.text3{
    width: 100%;
    height: 50px;
    width: 68%;
    margin: 0 auto;
}
.icon ul li{
    line-height:50px;
    display: inline-block; 
    text-align: center;
    width: 23%;
    font-size: 18px;
    color: white;
    background: url(../image/qq.png)
}
.text3 ul li{
    line-height:50px;
    display: inline-block; 
    text-align: center;
    width: 23%;
    font-size: 18px;
    color: black;
}